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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Urinary calculi.






2. Failure to have both testis (gonads) descend






3. (LH) causes female's egg to break (her period)






4. Supply nutrients for the sperm following ejaculation and deposition into the female reproductive tract






5. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.






6. Largest dairy cow - largest udder - highly vascular - eat 40-50% dry matter (eat alot) - most total butterfat






7. 1. to eliminate breeding the females at an early age - 2. makes animals less lean and provides a better cut for the market






8. 1. brain function - 2. blood flow - 3. willing female






9. Important 'landmark' during palpation






10. 147 days






11. Gonadotropic (GnRH) is (FSH and LH). Follical Stimulating (FSH) and Lutinizing Hormone (LH).






12. 1. sperm is not implanted in egg until hours after breeding. 2. fetal growth has not yet finished.






13. Standing to be mounted (last one able to notice); mounting other animals; social behavior-restless - gregarious - activity - vocalizing; frequent urination; mucous discharge






14. Look for infection - split - and rupture of the penis






15. When are steers and heifers weaned from bottle feeding?






16. FEED






17. (from Jersey Islands in Great Britain) Smallest cow - least milk - highest butterfat %






18. 283 days






19. Can produce 200 calves naturally (~100 bulls) - top 1-2% will grade like him. everything left to chance if no AI performed






20. (FSH) causes egg to mature in females






21. Superior genes are _______ to multiply






22. Check feet and legs - look for masculine traits in build such as crest and muscling






23. Not being bred back into herd. horses are seasonal breeders vs. cows as anytime breeders






24. Contains and regulates the temp of the testes for sperm production






25. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated






26. Not being bred back into herd. horses are seasonal breeders vs. cows as anytime breeders






27. Animals which have many estrous periods per year (ex: cow - sow)






28. 265-285 days






29. Largest dairy cow - largest udder - highly vascular - eat 40-50% dry matter (eat alot) - most total butterfat






30. Birthing process (termination of gestation)






31. Boars and stallions-> deliver semen directly into the cervix. bulls and rams-> deliver semen into the vagina.






32. Examine accessory glands - also to know how big the pelvic opening is->heritable->relates to how much dystocia that bull's daughter has






33. Failure to have both testis (gonads) descend






34. When she is pregnant in her last trimester because she needs the energy to carry around and deliver the calf. and when the calf is born because the cow needs the fat to be deposit it into her milk for the calf's energy stores.






35. Superior genes are _______ to multiply






36. Prevent the cow from getting an infection from the calve






37. Organ of copulation - provides passageway for semen and urine - muscular organ characterized especially by its spongy - erectile tissue that fills with blood






38. 10-37 (21) days






39. 1. bring in new genes - 2. replace males with leg problems (difficulty breeding) Note: culling has a much greater emphasis in the dairy industry vs the beef industry.






40. Important 'landmark' during palpation






41. Way to know everything is alright with the breeding male






42. FEED






43. Not under a timeline - cow can not be sold as steak






44. 336 days






45. Birthing process (termination of gestation)






46. 1. bring in new genes - 2. replace males with leg problems (difficulty breeding) Note: culling has a much greater emphasis in the dairy industry vs the beef industry.






47. Allows extension of penis without fibro-elastic penis






48. To remove/separate testicles from animal's body before animal reaches puberty






49. 16-20 hours






50. ~60 days before calving